ZenLedger
Depends
Confidence: Medium
Buy if you're a US crypto investor with DeFi, NFT, or CPA-collaboration needs and accept some manual data cleanup.
New check
Comparison
ZenLedger and Koinly both land on Depends.
Buy if you're a US crypto investor with DeFi, NFT, or CPA-collaboration needs and accept some manual data cleanup.
Buy if you trade across multiple exchanges, wallets, or DeFi protocols.
| Compare | ||
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Active US crypto traders | Active multi-exchange traders |
| Who it's not for | Casual holders with a handful of trades . spreadsheet territory | Buy-and-holders using one exchange |
| Privacy | No known public vulnerabilities found in the sources reviewed.³ | ISO 27001-compliant per Koinly's own materials; one source references an unverified data breach. |
| Support quality | Advertises 24/7 support; user sentiment mixed. | No reliable evidence in reviewed sources |
| Public sentiment | Sentiment is mixed-to-negative: Reddit users describe cleanup work and switching away, while reviewers credit broad exchange, DeFi, and NFT coverage.⁷ | Long-term users report reliable tracking, but plan confusion and API-key security concerns recur across reviews.15 |
| Biggest gotcha | Expect manual CSV cleanup; users say imports don't just work.⁹ | API-key access means breach exposure sits with the vendor; one source cites a Koinly data breach |